Shuitu Baochi Xuebao, 2021 为探究花岗岩红壤侵蚀退化地不同治理模式对土壤抗蚀性的影响，通过野外调查与室内外试验，以长汀县封禁（M1）、乔灌草混交（M2）、全坡面播草（M3）、低效林改造（M4）、条沟草灌带（M5）这5种治理模式的土壤为研究对象，选取开垦地（CK1）和裸露地（CK2）为对照，利用主成分分析法揭示土壤抗蚀性主要影响因子，并结合灰色关联分析和耦合分析对土壤抗蚀性进行综合评价。结果表明：（1）不同治理模式的土壤抗蚀性由强到弱依次为M5 > M2 > M3 > M4 > M1 > CK2 > CK1；（2）> 0.25 ...
姜兴雪 +5 more
doaj
Studies on Changes in Atmospheric Greenhouse Gas Fluxes from Soils of Kandelia obovata Mangrove Forests with the Development of Restored Vegetation in Jiulong River Estuary [PDF]
, 2014 选取福建九龙江口南岸浮宫镇霞郭村秋茄红树林研究断面，研究夏季白天的一个潮汐周期内未被潮水浸没时红树林土壤3种温室气体（N2O、CH4和CO2）通量变化情况，探究滩位和潮汐日变化对该地区红树林土壤大气界面温室气体通量的影响。在此基础上，以光滩为对照和恢复的起点，再选取26年生和50年生的人工秋茄红树林以及天然成熟林代表不同恢复阶段，探讨不同植被恢复阶段红树林土壤-大气界面这3种温室气体通量随植被恢复时间的关系，并分析植被恢复导致的土壤环境变化对温室气体通量的影响，为人工红树林的功能恢复提供参考依据 ...
余丹
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Effects of Mixing Tree Species on Soil Enzyme Activity and Carbon-Use Efficiency in Eroded Masson Pine Forest [PDF]
[Objective] Soil microbial metabolic efficiency profoundly affects soil nutrient cycling and soil carbon sequestration in the recovery process of eroded and degraded areas. However, it is unclear how tree species mixture affects soil extracellular enzyme
JIANG Yongmeng +7 more
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, 2018 结合坡面微地形变化,从土壤微生物群落多样性角度研究典型缓丘区不同坡位上土壤微生物群落特征,了解微地形生境下土壤微生物群落变化趋势.研究结果表明,土壤微生物群落培养的平均颜色变化率(AWCD)增长曲线呈现中坡位>坡顶>下坡位>上坡位>坡底的规律,中坡位土壤微生物群落代谢活性最高,坡底土壤微生物群落对基质的利用能力最低;在土壤微生物多样性指数比较中发现,除McIntosh均一度指数变化不显著外,其余土壤微生物多样性指数在不同坡位上存在显著差异.其中 ...
杜勇 +4 more
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Research on soil improvement and engineering application under mixed application of environmental materials in alpine mining areas [PDF]
To address the issues of inadequate topsoil structure, soil erosion, and low soil fertility in the reclamation of alpine mining areas. Taking Qinghai West Copper Mine as an example, this study investigates the impact of three materials—sheep manure(A ...
Jie REN +4 more
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Shuitu Baochi Xuebao, 2017 分析生物质炭施用对潮土理化性状、酶活性及黄瓜产量的影响，为生物质炭在农业中的推广应用提供一些科学依据，以如皋市农业科学研究所大棚示范区为试验基地，通过田间小区试验，研究了不同生物质炭施用量（0，5，10，20，30，40 t/hm2）条件下土壤理化性状、酶活性及黄瓜产量变化。结果表明：生物质炭施用对土壤理化性状及土壤酶活性有显著的影响。高施用量（40 t/hm2）处理对土壤物理性状的改良效果最好，当生物质炭施用量为30 t/hm2时对土壤养分含量提升效果最好。与对照相比 ...
韩召强 +6 more
doaj
Effects of Organic Fertilizer Substitution and Aggregation on Microfauna Communities in a Red Soil [PDF]
[Objective] Red soil is a typical soil in Southern China, and organic substitution is an important way to improve the physicochemical properties of red soil.
DING Weixin +6 more
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Extracellular Enzyme Stoichiometric Characteristics of Subtropical Forest Soil under Forest Fire Disturbance [PDF]
[Objective] Forest fire, as the primary natural and human-induced disturbance in subtropical forests, seriously affects the soil biochemical cycle.
GUO Qiling +5 more
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Research Advances of Decline Mechanism and Maintenance Approach of Casuarina equisefolia in Coastal Area [PDF]
, 2007 基于几十年来木麻黄的研究成果,综述了沿海木麻黄林的衰退因素。结果认为:沿海木麻黄衰退现象是由多种因素引起的一种林木衰退病,并指出维持木麻黄林健康的主要途径是营造混交林以及选用抗病、抗旱(风)等抗逆无性系造林。After a brief review on coastal Casurina equisefolia in the past decades,the latest advances of the decline influencing factors of coastal Casurina ...
叶功富, 肖胜生, 郭瑞红
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Research advances in the interaction mechanism and ecological functions between orchard soil microorganisms and physicochemical properties [PDF]
The complex and dynamic interactions between soil microbial communities and soil physicochemical properties constitute a fundamental mechanisms maintaining the stability, functionality, and long-term sustainability of terrestrial ecosystems.
DONG Tie +4 more
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